T5: problem with label rendering

[Douglas Chan]

Hi list,
 
I'm new to T5, and I have problem in label rendering.
here is the code.
 
<t:label t:for="userName">code will be replaced</t:label>
<input type="text" t:type="textfield" t:id="userName" t:label="User Name"
t:value="userName"/>
 
when I run the page, the "code will be replaced" is not replaced by "User
Name" as expected.
Can anyone give me some hints and guidance what ran wrong?
 
Thanks
John
 
Tapestry 5.1.05
Eclipse 3.5
Maven 2.2.1
Java 1.6.0_16